published on: 2013-08-09 21:49:28
Just beneath the skull is a tough, leathery layer called the dura
(From right to left): Scalp - Periosteum - Bone - Dura Mater
human embryo face at about 5 weeks
L0058797 Human skull illustrating different methods of trephination
Patent Drawing for R. J. Spaldings Flying Machine, 03/05/1889
Tudor sword of Henry VIII @ Ashmolean Museum, Oxford 1500-1600,